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Using Display tag in struts

 
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Hi,

I am new to struts.I am using display tag in my jsp page.For that i have used diplay-tag.jar and display-tag tld file. But while running the application ,it is giving error.

"javax.servlet.ServletException: org/apache/commons/beanutils/NestedNullException
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:867)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:800)
org.apache.jsp.example_jsp._jspService(example_jsp.java:85)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1033)
org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:269)
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:436)
org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:312)
org.apache.struts.action.RequestProcessor.processActionForward(RequestProcessor.java:401)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1422)
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:505)
javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)"

Please let me know the way to proceed further.

Thanks in advance
 
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Try taking a look at the java code generated by your jsp. See what's going on at line 85 and then see if you can figure out which tag in your JSP generated that line of code. This may help you narrow down where in your jsp this problem came from.
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